350LB Wheeled Ansul Redline Long Range (Purple K)

The Ansul Red Line RL-LR-PK-350-C is a 350 lb wheeled cartridge-operated fire extinguisher configured with the optional long-range nozzle and charged with Purple K (potassium bicarbonate) — the most effective dry chemical agent for Class B flammable liquid fires. The "LR" designation signifies the factory-installed long-range nozzle, which extends the operator's effective engagement distance beyond that of the standard C Model, providing additional standoff from intense radiant heat in large-scale fuel fire scenarios.

With a UL/ULC rating of 480-B:C, this unit represents maximum portable suppression power for Class B and C hazards. Purple K is approximately twice as effective per pound as sodium bicarbonate on flammable liquid fires, meaning the 350 lb charge delivers exceptional suppression density for tank farm fires, aviation fueling incidents, and petrochemical emergencies where every second of discharge time counts. The unit is completely self-contained — an attached nitrogen cylinder provides all the pressure needed to fully expel the agent.

Why the Long Range Nozzle Matters

Standard wheeled extinguisher nozzles are optimized for maximum agent delivery at close to mid-range distances. The long-range nozzle option on the RL-LR-PK-350-C uses a different barrel geometry to project the Purple K agent stream further downrange, allowing the operator to initiate suppression from a greater distance before advancing. This is particularly valuable at airport tarmacs, open fuel storage areas, and refinery manifold zones where the thermal column and radiant heat from a large fuel fire would force a standard-nozzle operator to stand back regardless. The added standoff distance the long-range nozzle provides can be the difference between an effective first attack and a delayed one.

Red Line C Model Platform

• Large Diameter Steel Wheels: Wheel centerline positioned near the center of gravity for balance and straightforward one-person maneuvering.
• Aluminum Long-Range Nozzle Barrel: Provides a solid, round agent stream optimized for extended range engagement.
• Two-Position Ball Valve: Allows the operator to stop and restart discharge during approach without losing pressurization.
• Indicator Fill Cap: Red stem pops up when the unit is pressurized, giving an immediate visual readiness check.
• On-Site Recharge Capability: Cartridge-operated design allows field recharge without shop equipment.

The RL-LR-PK-350-C is specified for open or large-area high-hazard environments where the additional standoff distance of the long-range nozzle provides a tactical advantage:

• Petrochemical Refineries: Open manifold and pump areas where large liquid spill fires create intense radiant heat fields that demand maximum standoff distance.
• Airport Tarmacs and Fueling Areas: Aircraft fueling operations and crash response staging where Purple K's rapid knockdown on aviation fuels is the agent of choice.
• Fuel Storage Terminals: Tank farm bund areas and loading rack fires where the long-range nozzle allows initial attack from outside the immediate hazard zone.
• Offshore Platforms: Exposed deck areas where wind conditions and heat make close-range engagement impractical.

To maintain NFPA 10 compliance, the RL-LR-PK-350-C must follow a documented maintenance schedule:

• Monthly Visual Inspection: Verify the nitrogen cylinder safety seal is intact, wheels and tires are undamaged, and the long-range nozzle and hose are free of damage or obstruction. Confirm inspection tags are current.
• Annual Maintenance: A certified technician must inspect all internal components, verify nitrogen cylinder condition, check hose and long-range nozzle assembly, and confirm the Purple K agent has not packed. Document findings on the inspection tag.
• 6-Year Internal Examination: Full internal inspection per NFPA 10, including agent removal, cylinder interior inspection, and component replacement as needed before recharge.
• 12-Year Hydrostatic Test: The welded steel agent tank must undergo hydrostatic pressure testing to verify structural integrity.

What is the difference between this and the standard CR-I-K-350-C Purple K model?

The RL-LR-PK-350-C includes the factory-installed long-range nozzle option, which increases the effective agent stream distance compared to the standard three-hole cone tip nozzle on the CR-I-K-350-C. Both units carry the same 350 lb Purple K charge and 480-B:C UL/ULC rating. The long-range nozzle is the correct choice when your risk assessment requires initial attack from a greater standoff distance — open tarmac fires, large tank farm incidents, or environments with extreme radiant heat.

Why is Purple K preferred over PLUS-FIFTY C for Class B fires?

Purple K (potassium bicarbonate) is approximately twice as effective per pound as PLUS-FIFTY C (sodium bicarbonate) on flammable liquid fires. This higher suppression efficiency means faster knockdown with the same agent volume, which is critical in large-scale fuel fire scenarios where the fire may be growing during the operator's approach.

Can one person operate the RL-LR-PK-350-C?

Yes. The Red Line C Model is designed for single-operator deployment. Despite the 922 lb shipping weight, the wheel centerline near the unit's center of gravity makes maneuvering manageable for a trained industrial fire responder.